Oil burner



June 10 1924.

w. s. HUMPHREY OIL BURNER Filed Sep A TT RN Patented June 10, 1924.

UNITED STATES PATENT ()FFlCE.

OIL :ewanna.

Application filed September 2?, 1922. Serial. No. 590,826.

To all whom it may concern:

Be it known that I, WALTER S. HUM- IHREY, a citizen of the UnitedStates, residing at Kansas City, in the county of Jackson and State ofMissouri, have invented certain new and useful Improvements in OilBurners; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will. enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the figures of reference markedthereon, which form a part of this specification.

This invention relates to oil burners and the primary object thereof isto provide an improved oil burner so constructed that the oil will besubjected to the action of an incandescent part of the burner as it isfed from the vaporizing chamber, thereby insuring a complete gasifyingof the oil with. marked efiiciency over those types of burners in whichthe oil is ignited before it is generated into a relatively dry gas.

In carrying out my invention I provide a base for the burner consistingof a material having high heat resistance so that the base may be heatedto practically incandescence, radiating intense rays of heat through thevapor discharged from the generating chamber prior to having the gasignited.

It is an important feature of the invention that the base be of suchmaterial that it will heat up to incandescence since it has been foundthat the oil vapors burn with marked efficiency in an incandescent zoneand it is also important that provision be made for eliminating or atleast reducing the liability of carbon forming in the passages or in thevaporizing chamber because where there is an accumulation of carbon, theefliciency of the burner is materially reduced.

My invention contemplates the provision of means whereby disadvantagesof present day burners are at least to a large extent overcome andwhereby high efiiciency is procured.

In the drawings,

I Fig. 1 is a perspective view of the burner with part of the vaporizingchamber broken away.

Fig. 2 is a cross sectional view through the vaporizing chamber.

Fig. 3 is a cross sectional view through the burner complete, and

Fig. 4 is a plan view of the base with the removable cap piece detached.1

Referring now to the drawings by numerals of reference:

1 designates a base of suitable material which possesses the ability toresist heat so that the temperature of the base can be raised to thetemperature of incandescence. The base is provided with a recess 2,which is, in effect, a priming pan to receive oil. The center of thebase is provided with an upstanding collar or wall 3, which surrounds acentral air opening 4, the top of the collar supporting a cone-shapedcap piece 5, which has legs 6 provided with shoulders 7, which restuponthe top of the'collar, as shown in. Fig. 3, so that the base of the cone5 will be spaced from the top of the collar to permit air to pass upthrough the central opening 4 and over the base.

Surrounding the collar and spaced therefrom are vertical steps orsupports 8, on which may rest the ring-shaped vaporizing chamber 9. Thevaporizing chamber is an endless, circular tube and it rests upon thesteps 8 of the base but it is fed with oil through a vertical pipe 10,which passes through the base and which has an outlet 11 discharginginto the vaporizing chamber.

The vaporizing chamber is also connected to a bowed or semi-circulartubular member 12, so that the vapors generated in the ring may passthrough the member 12 and out through an opening 13. spaced from but inline with the apexof the cone 5. The walls of the opening 13 areconical, the base of the cone being at the inner wall of the tube 12 andthe apex near the outer wall so that liability of carbon forming will bereduced to a minimum.

The vaporizing ring and the arch-shaped member 1.2 will be made smoothon the in terior and will preferably consist of material which does nothave an aflinity for carbon so that the carbon can flow along with thevapor and pass out through the opening 13. The advantage of having theinverted, conical-shaped opening 13 as the outlet orifice is that if thehole is drilled from the outside toward the center of the tube 12, therewill be a burr on the inner wall which will tend to collect carbon andcause the opening 13 to be closed. I prefer to drill the hole in theform shown in Fig. 2 so that there will be no obstruction of the carboncarried along with the vapor. The hole 13 can b'e-made'by drillingthrough "at 13' and then drilling the hole 13 and subsequently closingthe opening 13'. Therefore, there will be an unobstructed passageway forthe vapors and liability of carbon accumulating Within the vaporizingchamber will "be reduced to a minimum.

\Vhen the incoming oil reaches the rin fi, it may be vaporized and passinto the member'12 and then onto the cone 5. Previously, the cone willhave'been heated to a very'high degree by priming; that is, a quantityof oil, alcohol or the like, will be placed in the pan or 'recessjQ andignited so that the base will be relatively hot.

Asthe vapojrstrikes the incandescent cone andmixes with the air passingthrough the opening 4, it will burn with a high degree oi: -efiic'1encywltho'ut any smoke or soot and combustion will be further supported byair furnished -through the vertical ports 14.

*The flame Will "pass downwardly over the ,cr1e, un'der the ring-shapedvaporizing chamber and laterally past the base. l.

" rovidedf c-o'v'erin a relativelv lar e area 7 D .n C

'lherefore' a ring-shaped flame ,will be and after the burneris started,allot the parts of the burner will .be relatively hot: the baseparticularly, being constructed of suitable material which .will becomeincandescent under moderate ;heat. for example, tire tiling, will behotenough to, in effect,

burn the va or articular-1v when the air is 7 .fed to it in the mannerdisclosed.

It will be apparent, of course, that when the vapor strikes the top ofthe cone, it will be spread in all directionsso that a substanitiallyhorizontal sheet of flame will be 'provideld With very great intensitydue to the manner of generating the gas and the mannert of feedingtheair to support combustion andtto the fact that incandescent surfaces,are constantly present,

1 "lVhlat Iclaim and desireto secure by Letters Patent is 1 1. An oilburner comprising a base'having central air port, a cone spaced frombut,

in line with the port and supported by the base. a hollow, ri-ngshaped-vaporizing chamber carried by the base, and an archshaped tube, theends of which communicate with the chamber, the tube having an orificedirectly in line with the apex of the cone.

2. An oil burner comprising a base having a central air port, a conespaced from but in line with the port and supported by the base, ahollow. ring-shaped vaporizing chamber carried by the base and anarchshaped tube, the ends of which conununicate with the chamber, thetube having an orilire directly in line with the apex of the cone, thebase having air openings near its periphery.

3. An oil burner comprising a base of material having good heatresistance, the .base comprising a circular block having a de pressionto form an oil pan and having a central air inlet port, upstandingstepmembers carried by the base, a ring-shaped vaporizing chamber supportedby the step members, means for supplying oil to the ring-shaped member,an arclrshapcd tube communicating with the ring-shaped member and havingan orifice in line with the central port, in the base, and. av deflectorspaced from the central port in the base but in line with the orifice inthe arch-shaped member.

4. An oil burner comprising a circular base having a central air portpassing through it and a plurality of: smaller air ports grouped aboutthe first port. the base WALTER- S. l-lUMPlaIREY.

